//
//  WBUserAccount.swift
//  SinaWeibo_Swift
//
//  Created by TianZhen on 16/4/11.
//  Copyright © 2016年 TianZhen. All rights reserved.
//

import UIKit

class WBUserAccount: NSObject,NSCoding {
    /// 用户授权的唯一票据
    var access_token: String?
    
    /// access_token的生命周期，单位是秒数, 基本数据类型不要定义为可选,定义为可选,kvc找不到这个属性
    var expires_in: NSTimeInterval = 0 {
        didSet {
            // 当KVC给expires_in赋值完后,我们来创建expiresDate
            expiresDate = NSDate(timeIntervalSinceNow: expires_in)
        }
    }
    
    /// 过期时间 NSDate,NSDate比较时间方便
    var expiresDate: NSDate?
    
    /// 授权用户的UID
    var uid: String?
    
    /// 用户昵称
    var screen_name: String?
    
    /// 用户头像地址（大图）180×180像素
    var avatar_large: String?
    
    /// 字典转模型
    init(dict: [String: AnyObject]) {
        // 在super.init之前需要给属性赋值,否则将属性定义为可选
        super.init()
        
        // 注意这个方法需要放在 super.init() 之后,因为super.init()后对象才创建完成,才能调用对象里面的方法
        // 使用setValuesForKeysWithDictionary属性不能使用private
        setValuesForKeysWithDictionary(dict)    // 会拿字典里面的每一个key去模型中找属性
    }
    
    /// 字典中的key在模型中找不到对应属性时调用
    override func setValue(value: AnyObject?, forUndefinedKey key: String) {
        HMPrint("forUndefinedKey: \(key)")
    }
    
    /// 如果不记得,CustomStringConvertible
    /// 打印对象,只读计算性属性
    override var description: String {
        get {
            return "access_token: \(access_token), expires_in: \(expires_in), uid: \(uid), expiresDate: \(expiresDate), screen_name: \(screen_name), avatar_large: \(avatar_large)"
        }
    }
    
    // MARK: - 归档和解档
    /// 解档
    required init?(coder aDecoder: NSCoder) {
        access_token = aDecoder.decodeObjectForKey("access_token") as? String
        expires_in = aDecoder.decodeDoubleForKey("expires_in")
        expiresDate = aDecoder.decodeObjectForKey("expiresDate") as? NSDate
        uid = aDecoder.decodeObjectForKey("uid") as? String
        screen_name = aDecoder.decodeObjectForKey("screen_name") as? String
        avatar_large = aDecoder.decodeObjectForKey("avatar_large") as? String
    }
    
    /// 归档
    func encodeWithCoder(aCoder: NSCoder) {
        aCoder.encodeObject(access_token, forKey: "access_token")
        aCoder.encodeDouble(expires_in, forKey: "expires_in")
        aCoder.encodeObject(uid, forKey: "uid")
        aCoder.encodeObject(expiresDate, forKey: "expiresDate")
        aCoder.encodeObject(screen_name, forKey: "screen_name")
        aCoder.encodeObject(avatar_large, forKey: "avatar_large")
    }
}
